This serum combines 30,000 ppm of glutathione with niacinamide, five types of hyaluronic acid, and ceramide to target dark spots and uneven skin tone. Glutathione is included for its potential to support a more even complexion, while niacinamide works alongside it to help reduce the appearance of discoloration. The multi-weight hyaluronic acid complex provides layered hydration, and ceramide assists in reinforcing the skin barrier. This formula is designed to suit sensitive skin types, as it avoids common irritants and focuses on gentle, soothing ingredients. The texture is lightweight and absorbs easily, making it suitable for daily use under moisturizer or sunscreen. It is intended for those seeking a radiance-boosting routine without relying on harsh actives. The product is manufactured following Korean skincare standards, which often emphasize balanced formulations and skin-friendly concentrations. Regular application may help improve luminosity over time, as the ingredients work to support natural skin renewal and hydration retention. This serum is best used after cleansing and before moisturizing, both in the morning and evening. It is not a treatment for severe hyperpigmentation but rather a supportive step for maintaining an even tone and a smooth surface. The inclusion of ceramide and hyaluronic acid makes it particularly beneficial for dry or dehydrated skin, though it remains non-greasy and suitable for combination types as well. As with any new skincare product, a patch test is recommended to confirm compatibility. This description is based solely on the listed ingredients and their known functions, without claiming specific or guaranteed results.